Lamp.



J. F. MITCHELL.

LAMP.

APPLICATION man Dc.29. |914.

Patented June 1, 1915.

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1 1 /ObOv @linnn-: E 1 1 H WITNESSES:

of vsaid member B to the body member A. Thus, access may be had to the various features of the lamp, and such features may readily be assembled and taken apart. The

Iswinging member B preferably comprises an annulus 12 provided with a peripheral outer lip 12 rearward of which is disposed the glass `or transparent plate 9, the supple mental reflector or shield 10 being held at one edge between such lip and glass plate; and the reiiector 5 lits at its periphery against the marginal portion of the glass plate 9, at the rearward surface thereof, the forward surface of such glass plate abutting against the supplemental reflector and shield 10 as last stated.

c designates holding meansA flhereby thereflector 5, the auxiliary reector 10, and the glass plate 9 are held together and in assemblage with the .annulus 12 of the swinging member B; such means`c prefer-` ably or suitably consisting of a split ring 13 which is applied to a perlpheral 11p 5 upon the reflector 5, and which, when the parts 14, whereupon the reflector 5 and glass plate 9 and auxiliary reflector or shield 10 may be released from assemblage for purposes of cleaning, repairing, lamp substitution and the like. The fastening means b may comprise a pronged plate 15 attached at one end tothe shield 6 and receiving between its furcations or prongs the threaded stem of a threaded thumb piece 16 carried by the annulus 12. The auxiliary reflector and shield 10 is preferably, curved transversely of the swinging member, and projects forwardly therefrom and downwardly into the lightprojecting area of the lamp approximately to the central zone thereof; and is rovided with a marginal lip l0 which rea ily seats beneath the lip 12 upon the annulus 12.

.The operation, method of use and advantages of the improvements in lamps constituting the invention will be readily understood from the foregoing description, taken in connection with the accompanying drawing and the following statement: The auxiliary reiiector Yand shield 10 is readily applied to the remaining features of the lamp, as bythe lip 10a Athereon which coperates withthe lip 12"on the annulus 12; and isy thus, or -by other suitable means, readily attachable to lamps of usual and standard construction, whereby the same may be transformed into the complete lamp device embodying the invention. The auxiliary re- Hector and shield 10, the inner surface of which will be understood is bright and reflecting and the outer surface of which may be finished or decorated as desired, coperates with the reflector .5, which' may be parabolic or of other geometric or preferred form or conformation with a bright forward surface. Such coperation tends to yhighly concentrate the-light rays emanating from the lamp proper a, and to increase the outward and forward projection of the same, as well as to extend the downward reflection of the same for the purpose of highly illuminatin a more Immediate 'eld directly in front 0% the lamp, as for instance, the main immedi# ate path or road to be taken by a vehicle carrying such lamp. Such auxiliary shield likewise serves to prevent the scattermg rojection and radiation of light rays w ich otherwise would occur, interfering with the vision o f men and'animals in the path there of, as upon a roadway, and tending to produce confusion and discomfort. Such auxiliary reflector or shield 10 likewise serves as a hood and protector for the lamp device, saving the samefrom in'ury due to contact with missilessuch as yin gravel and pebbles, birds, and other objects the impact of which upon the lamp and the glass front plate thereof would tend to ybreak or damage the same; and said shield 10 tends likewise to keep the glass front plate 9 free from accumulationspof fog, rain and other moisture, as well yas dust and other substances which would otherwise dim the rays projected from the lamp and decrease its eliciency. y

The entire lamp device is highly superior in point of eilciency and serviceability, because of the features provided and mode of operation above pointedvout, and serves effectively to cast a concentrated illumination, without the confusing and annoying glare of dissipation of light rays by overhead radiation, and the reflecting and protecting surfaces, which are of particular adn tion, combination' and assemblage ofparts,

members and features embodying the mvention, all without departing from the spirit of the invention and the terms of the following claim.

Having thus disclosed my invention, I

claim and desire to secure by Letters Pat'-I ent:

A lamp having a body within which are dlsposed a source of illumination and a mam reflector, a swinging member hin ed lupon said body, anda supplemental re ector carried by the swinging member; said swinging member comprising an annulus provided with a lange, said supplemental reflector being provided with a ange adapted to be engaged with said flange in said 5 annulus, there being a transparent plate apled to the flange of said supplemental reector and means being provided for cooperation with the annulus to hold the transparent plate to the flange upon the supplemental reector and said flange to the 10 flange .upon the annulus.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHN F. MITCHELL.

Witnesses:

ALFRED H. DAEHLER, CLEVELAND SCHULTZ. 

